Prostatic malakoplakia mimicking prostate cancer in an elderly male with prostatitis: A rare but important differential

We report the case of an 81-year-old male presenting with lower urinary tract symptoms and a PSA of 39 ng/mL, initially attributed to <i>Escherichia coli</i> prostatitis. Despite PSA normalization with antibiotics, MRI demonstrated a PIRADS 5 lesion in the left transition zone. Histopathological evaluation following transperineal biopsy revealed prostatic malakoplakia. This rare granulomatous condition can mimic prostate cancer both clinically and radiologically. Our case highlights the importance of histological confirmation in atypical presentations to avoid misdiagnosis and overtreatment.

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Publication Details

Journal
Urology Case Reports
Published
2026-03-07
DOI
https://doi.org/10.1016/j.eucr.2026.103401
Primary Topic
Infectious Disease Case Reports and Treatments
Type
article
Field-Weighted Citation Impact
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article

Prostatic malakoplakia mimicking prostate cancer in an elderly male with prostatitis: A rare but important differential

Jonathan Kam, Warick Delprado, Darshan Sitharthan, Marco Rosario
Urology Case Reports
Infectious Disease Case Reports and Treatments
article

Prostatic malakoplakia mimicking prostate cancer in an elderly male with prostatitis: A rare but important differential

Jonathan Kam, Warick Delprado, Darshan Sitharthan, Marco Rosario
article en

Abstract

We report the case of an 81-year-old male presenting with lower urinary tract symptoms and a PSA of 39 ng/mL, initially attributed to <i>Escherichia coli</i> prostatitis. Despite PSA normalization with antibiotics, MRI demonstrated a PIRADS 5 lesion in the left transition zone. Histopathological evaluation following transperineal biopsy revealed prostatic malakoplakia. This rare granulomatous condition can mimic prostate cancer both clinically and radiologically. Our case highlights the importance of histological confirmation in atypical presentations to avoid misdiagnosis and overtreatment.

Urology Case ReportsVol. 66
The University of Sydney (AU), Nepean Hospital (AU), Douglass Hanly Moir Pathology (AU), Macquarie University (AU)
Good health and well-being
Openalex Percentile: Top 32%
Infectious Disease Case Reports and Treatments
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